Question

How to scale bitmaps at runtime to a very small size and then storing them in internal storage? how to call the scaled bitmaps into the program from the storage at runtime and if its not there, call it from drawable folder, scale it, write it to storage and then bind it to the view.

Answer 1

If you want to scale the bitmap you could use Bitmap.createScaledBitmap

To scale an arbitrary bitmap to 32×32 you could do it as follows:

Bitmap smallBitmap = Bitmap.createScaledBitmap( fullSizeBitmap, 32,  32,  true );